import re
text = ("23,\"1,309\",0\n"
"23,\"134,799\",2\n"
",\"1,549,089\",0\n"
"8908.89,\"27,989\",3")
regex = r'"(?:\d+,)?\d+,\d+"'
print(re.findall(regex, text))
aW1wb3J0IHJlCgp0ZXh0ID0gKCIyMyxcIjEsMzA5XCIsMFxuIgoJIjIzLFwiMTM0LDc5OVwiLDJcbiIKCSIsXCIxLDU0OSwwODlcIiwwXG4iCgkiODkwOC44OSxcIjI3LDk4OVwiLDMiKQpyZWdleCA9IHInIig/OlxkKywpP1xkKyxcZCsiJwpwcmludChyZS5maW5kYWxsKHJlZ2V4LCB0ZXh0KSk=